http://www.colloquiam.com/wd/index.php?action=history&feed=atom&title=Topken_van_de_Par_2020a 2026-05-11T04:16:17Z Revision history for this page on the wiki MediaWiki 1.27.0-wmf.10 http://www.colloquiam.com/wd/index.php?title=Topken_van_de_Par_2020a&diff=198735&oldid=prev 2021-02-01T22:15:28Z

<p>Scipediacontent moved page <a href="/public/Draft_Content_447068958" class="mw-redirect" title="Draft Content 447068958">Draft Content 447068958</a> to <a href="/public/Topken_van_de_Par_2020a" title="Topken van de Par 2020a">Topken van de Par 2020a</a></p> <table class="diff diff-contentalign-left" data-mw="interface"> <tr style='vertical-align: top;' lang='en'> <td colspan='1' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='1' style="background-color: white; color:black; text-align: center;">Revision as of 22:15, 1 February 2021</td> </tr><tr><td colspan='2' style='text-align: center;' lang='en'><div class="mw-diff-empty">(No difference)</div> </td></tr></table>

Scipediacontent http://www.colloquiam.com/wd/index.php?title=Topken_van_de_Par_2020a&diff=198734&oldid=prev 2021-02-01T22:15:23Z

<p>Created page with &quot; == Abstract == Supersonic aircraft produce a sonic boom when flying faster than the speed of sound. In order to rule out detrimental&lt;br&gt; e ects for inhabitants of overflown...&quot;</p> <p><b>New page</b></p><div><br /> == Abstract ==<br /> <br /> Supersonic aircraft produce a sonic boom when flying faster than the speed of sound. In order to rule out detrimental&lt;br&gt; e ects for inhabitants of overflown areas, civil supersonic flights (like the Concorde) were allowed to fly over water only.&lt;br&gt; Due to progress in aircraft design, the super sonic boom may be reduced considerably in the future. Such ”Low Sonic&lt;br&gt; Boom”-signatures will be considerably quieter and sound completely di erent compared to conventional sonic booms.&lt;br&gt; Currently, the sensation and the subjective response of humans to future ”Low Sonic Boom”-signatures is not known.&lt;br&gt; For an assessment of human responses to ”Low Sonic Boom”-signatures, a Sonic-Boom simulator has been built at the&lt;br&gt; University of Oldenburg as a pressure chamber with a volume of about 9 m&lt;sup&gt;3&lt;/sup&gt;. Two 18” loudspeaker chassis enable the&lt;br&gt; production of an overpressure of up to 20 Pa for a signature duration of 200 ms. The background noise level in the&lt;br&gt; chamber is very low (21 dB(A)) and the chamber has a very small reverberation time of T&lt;sub&gt;20&lt;/sub&gt;=0.2 s averaged over octave&lt;br&gt; bands from 63 Hz to 8 kHz. A vibration platform is installed in the chamber to simulate whole-body vibration that may&lt;br&gt; occur in connection with ”Low Sonic Boom”-signatures.<br /> <br /> <br /> == Original document ==<br /> <br /> The different versions of the original document can be found in:<br /> <br /> * [http://dx.doi.org/10.5281/zenodo.4246728 http://dx.doi.org/10.5281/zenodo.4246728] under the license https://creativecommons.org/licenses/by/4.0/legalcode<br /> <br /> * [http://dx.doi.org/10.5281/zenodo.4246729 http://dx.doi.org/10.5281/zenodo.4246729] under the license https://creativecommons.org/licenses/by/4.0/legalcode<br /> <br /> * [https://zenodo.org/record/4246729 https://zenodo.org/record/4246729]<br /> <br /> <br /> <br /> DOIS: 10.5281/zenodo.4246728 10.5281/zenodo.4246729</div>

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